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Material reservations over-supplied with EWM

May 11, 2017 at 03:24 PM

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Hi,

We're using material reservations to trigger movement of goods from an EWM sloc.

A reservation is created (MB21), and then a pick list (MB26) - this creates a delivery in ERP which is distributed to EWM.

This issue we have is, until the EWM delivery is processed and the message is sent back to ERP, it is possible to create further pick lists and therefore deliveries.

So its possible to over supply against a reservation.

The person managing the reservations has no way to know whether or not a reservation is currently being picked by the EWM warehouse.

Is this a gap in the reservation process?

Any hints or tips appreciated.

Regards

Guy

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Hello,

Can you help me with more details aroound this

"A reservation is created (MB21), and then a pick list (MB26) - this creates a delivery in ERP which is distributed to EWM."

Thanks

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4 Answers

Juergen Pitz
Mar 01 at 12:29 PM
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Hi,

as much as I agree with Jürgen, I simply say that there is no answer to this question. Because I do not think that working with MB21 and MB26 was ever build and intended to work with a warehouse management system, without regards to WM or EWM. It is simply not meant to be used in an EWM environment. There are enough other ways, with much more and better features, so why bother?

Brgds

Juergen

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Mario Ecker Jan 30 at 02:34 PM
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Hi Guy

I have the same issue. Have you already solved it?

I found the BADI LE_SHP_GN_DLV_CREATE. Maybe you can develop such check in this implementation. But i still hope for a better solution.

Kind Regards,
Mario

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Mario Ecker Jan 30 at 02:34 PM
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Hi Guy

I have the same issue. Have you already solved it?

I found the BADI LE_SHP_GN_DLV_CREATE. Maybe you can develop such check in this implementation. But i still hope for a better solution.

Kind Regards,
Mario

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Former Member Mar 01 at 04:33 AM
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We have same issue ... please update if you found any solution

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maybe you should take the chance and explain it with other words. This question was asked 9 months ago, had over a 100 views and no answers. It can be that the question is not really understood by the readers.

Bring an example which makes it visible. I can actually say that I do not understand where here a problem with over-supply is.

if I create a reservation for 100 and this is send as delivery to EWM, and I continue to do other reservations, say 50 more. Then EWM brings the first 100. Where is here an oversupply- It is less than the current reservations, but there is also not said why the reservation for 50 cannot be send to EWM like the first reservation.

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Former Member

Hi Jurgen,

Below is an example to explain the issue I am facing

1) Create a reservation in S4 for 100 EA for a material

2) Post Goods issue using MIGO and MB26 for 100 EA

3) System creates Outbound Delivery if the location is EWM managed and creates an EWM Delivery in the integrated EWM system

4) Now before picking and Goods issue from EWM, go to MB26 or MIGO

5) Create another Outbound Delivery against same reservation for 100 EA

6) System will allow to create multiple Outbound Deliveries from S4 side until picking and goods issue is posted from S4 EWM

7) Issue here is system is not checking if there is an existing Outbound Delivery which is due for Pick and Goods Issue

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Why should it check for other deliveries?

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Former Member

Don't you think multiple Outbound Deliveries created for same reservation is an issue? Why system should create more than one Outbound Delivery for a reservation

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Sure it is, but why do you do it to begin with?

You posted goods issue in your step 2 and 4, and for each one you get a delivery, or what do you actually do in MIGO?

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Former Member

In step 2 - I go to MIGO - Goods Issue - enter reservation number and post -> System creates an Outbound Delivery and gets distributed to EWM, hence this is not actually posting a Goods Issue but just an Outbound Delivery is getting created here. Actual picking and Goods issue is carried out in EWM (step 3)

Now if we go back to step 2 and repeat the steps before step 3, system creates multiple Outbound Delivery for same reservation

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